Community

Software

https://pykeen.readthedocs.io/en/latest/tutorial/first_steps.html
Gallery
PyKEEN – Python package designed to train and evaluate knowledge graph embedding models

Community, Software

PyKEEN

Python package designed to train and evaluate knowledge graph embedding models

ِTutorials

Github

http://sansa-stack.net/
Gallery
SANSA – Distributed Semantic Analytics Stack (since 2016, founder, leader)

Community, Software

SANSA

Distributed Semantic Analytics Stack (since 2016, founder, leader)

Github

https://aksw.org/Projects/Sparqlify.html
Gallery
Sparqlify – SPARQL-SQL rewriter (since 2012, supervisor)

Community, Software

Sparqlify

SPARQL-SQL rewriter (since 2012, supervisor)

Github

https://aksw.org/Projects/DeFacto.html
Gallery
DeFacto – Deep Fact Validation (since 2012, founder, co-leader)

Community, Software

DeFacto

Deep Fact Validation (since 2012, founder, co-leader)

Github

ِDemo

http://dl-learner.org/
Gallery
DL-Learner – A tool for supervised Machine Learning in OWL and Description Logics (since 2007, founder, leader)

Community, Software

DL-Learner

A tool for supervised Machine Learning in OWL and Description Logics (since 2007, founder, leader)

Github

Dataset

http://lc-quad.sda.tech/
Gallery
LC-QuAD – Largescale Complex Question Answering Dataset

Datasets, Software and Data

LC-QuAD

Largescale Complex Question Answering Dataset

ِDownload

Website

http://geoknow.eu/Welcome.html
Gallery
LinkedGeoData – Adding a spatial dimension to the Web of Data (since 2009, co-founder, co-leader)

Datasets, Software and Data

LinkedGeoData

Adding a spatial dimension to the Web of Data (since 2009, co-founder, co-leader)

ِWebsite

Download

http://dbpedia.org/
Gallery
DBpedia – Extraction of machine understandable content from Wikipedia (since 2007, co-founder, co-leader)

Datasets, Software and Data

DBpedia

Extraction of machine understandable content from Wikipedia (since 2007, co-founder, co-leader)

Github

Community Services

Journal Editorial Boards

Semantic Web Journal, since 2010

Journal of Information Technology Research, since 2008

General Chair

Computer Science Conference for University of Bonn Students (CSCUBS), 2016

European Data Forum (EDF), 2015

Program Chair

SEMANTiCs – Transfer, Engineering, Community (SEMANTiCs), 2014

European Data Forum (EDF), 2014

Sponsorship Chair

International Semantic Web Conference (ISWC), 2014

Track/Area Chair

International Conference on Neural Information Processing Systems (NeurIPS), 2024

International Conference on Learning Representations (ICLR), 2024

International Conference on Learning Representations (ICLR), 2023

Extended Semantic Web Conference (ESWC), 2016

Extended Semantic Web Conference (ESWC), 2013

Extended Semantic Web Conference (ESWC), 2011

Senior PC Member

International Joint Conference on Articial Intelligence (IJCAI), 2021

International Joint Conference on Articial Intelligence (IJCAI), 2020

International Joint Conference on Articial Intelligence (IJCAI), 2019

Association for the Advancement of Articial Intelligence Conference (AAAI), 2018

Association for the Advancement of Articial Intelligence Conference (AAAI), 2017

Association for the Advancement of Articial Intelligence Conference (AAAI), 2016

Association for the Advancement of Articial Intelligence Conference (AAAI), 2014

Event Organisation

Leipziger Semantic Web Tag (LSWT), 2011

Indian-Summer School on Linked Data (ISSLOD), 2011

Workshop Chair

Amazon Machine Learning Conference Workshop on Hallucination in Generative AI Models, 2024

New Trends in Representation Learning with Knowledge Graphs (KGRL), 2021

New Trends in Representation Learning with Knowledge Graphs (KGRL), 2019

Large Scale RDF Analytics (LASCAR), 2019

Linked Data on the Web (LDOW), 2018

Linked Data on the Web (LDOW), 2017

International Workshop on Knowledge Discovery and Data Mining Meets Linked Open Data (Know@LOD), 2016

Special session on: Open Data and Geographical Information System applications(ODaGIS), 2015

International Workshop on Knowledge Discovery and Data Mining Meets Linked Open Data (Know@LOD), 2015

Linked Data Europe (LDE), 2014

International Workshop on Knowledge Discovery and Data Mining Meets Linked Open Data (Know@LOD), 2014

International Workshop on Geospatial Linked Data (GeoLD), 2014

International Workshop on Knowledge Discovery and Data Mining Meets Linked Open Data (Know@LOD), 2013

International Workshop on Crowdsourcing the Semantic Web (CrowdSem), 2013

International Workshop on Knowledge Discovery and Data Mining Meets Linked Open Data (Know@LOD), 2012

Tutorial Chair

SANSA’s Leap of Faith: Scalable RDF and Heterogeneous Data Lakes, Extended Semantic Web Conference (ESWC), 2019

QA-Tutorial: How to build a Question Answering system overnight, Extended Semantic Web Conference (ESWC), 2019

QA-Tutorial: How to build a Question Answering system overnight, Extended Semantic Web Conference (ESWC), 2018

Panel Member

World Wide Web Conference (WWW), 2018

Extended Semantic Web Conference (ESWC), 2011

Advisory Boards

Advisory Board Member of the LAMBDA Network (2018 – 2021)

Advisory Board Member of the WDAqua Network of Excellence (2016 – 2017)

Bitkom Working Group Articial Intelligence (since 2017)

Special Issue Editorial Boards

Semantic Web Journal Special Issue on Machine Learning for Knowledge Base Generation and Population 2016

Semantic Web Journal Special Issue on Linked Dataset Descriptions 2013

Programme Committees

International Joint Conference on Articial Intelligence (IJCAI), 2022

Conference on Empirical Methods in Natural Language Processing (EMNLP), 2021

Extended Semantic Web Conference (ESWC), 2019

International Joint Conference on Articial Intelligence (IJCAI), 2018

Hybrid Question Answering with Structured and Unstructured Knowledge (HQA),2018

Extended Semantic Web Conference (ESWC), 2018

Question Answering over Linked Data (QALD), 2017

International Conference on Knowledge Capture (K-Cap), 2017

Generalizing knowledge: from Machine Learning and Knowledge Representation to the Semantic Web (GenSW), 2017

Top-K Shortest Path in Large Typed RDF Graphs Challenge (Top-K), 2016

Question Answering over Linked Data (QALD), 2016

Association for the Advancement of Articial Intelligence Conference (AAAI), 2015

Natural Language Interfaces for Web of Data (NLIWoD), 2014

International Workshop on NoSQL Databases and Linked Data Applications (NoSQL-Net), 2014

International Semantic Web Conference (ISWC), 2014

Extended Semantic Web Conference (ESWC), 2014

International Conference on Knowledge Capture (K-Cap), 2013

Ontologies and Data in Life Sciences (ODLS), 2013

Linked Data on the Web (LDOW), 2013

International Workshop on Description Logics (DL), 2013

International Semantic Web Conference (ISWC), 2013

International Joint Conference on Articial Intelligence (IJCAI), 2013

Association for the Advancement of Articial Intelligence Conference (AAAI), 2013

ACM Conference on Hypertext and Social Media (Hypertext), 2013

Very Large Data Search (VLDS), 2012

Studentenkonferenz Informatik Leipzig (SKIL), 2012

Linked Data on the Web (LDOW), 2012

International Semantic Web Conference (ISWC), 2012

International Conference on World Wide Web (WWW), 2012

International Conference on Knowledge Engineering and Knowledge Management (EKAW), 2012

Interacting with Linked Data (ILD), 2012

GIScience in the Big Data Age 2012 (GiBDA), 2012

Extended Semantic Web Conference (ESWC), 2012

Studentenkonferenz Informatik Leipzig (SKIL), 2011

Massive Information Sharing and Integration (MISI), 2011

Linked Data on the Web (LDOW), 2011

International Workshop on Inductive Reasoning and Machine Learning for the Semantic Web (IRMLeS), 2011

International Semantic Web Conference (ISWC), 2011

International Joint Conference on Articial Intelligence (IJCAI), 2011

International Conference on Web Engineering (ICWE), 2011

Extended Semantic Web Conference (ESWC), 2011

Workshop on Trust and Privacy on the Social and Semantic Web (SPOT), 2010

Workshop on Inductive Reasoning and Machine Learning on the Semantic Web(IRMLeS), 2010

Workshop On Linked Spatiotemporal Data (LSTD), 2010

Studentenkonferenz Informatik Leipzig (SKIL), 2010

Extended Semantic Web Conference (ESWC), 2010

European Semantic Web Conference (ESWC), 2009

Workshop on Scripting and Development for the Semantic Web (SFSW), 2009

Workshop on Inductive Reasoning and Machine Learning on the Semantic Web(IRMLeS), 2009

International Workshop on Web Semantics (WebS), 2009

European Semantic Web Conference (ESWC), 2009

Workshop on Scripting for the Semantic Web (SFSW), 2008

International Conference on Semantic Systems (I-Semantics), 2008

I-Semantics (IS), 2008

SABRE Conference on Social Semantic Web (CSSW), 2007

Networks

European Lab for Learning and Intelligent Systems (ELLIS)

Center for Scalable Data Analytics and Artificial Intelligence (ScaDS.AI)

Reviewing

The list does not include PC memberships. For journals, I listed the year in which I performed reviews.

Association for Computational Linguistics (ACL), 2025

International Conference on Machine Learning (ICML), 2025

Association for Computational Linguistics (ACL), 2024

Empirical Methods in Natural Language Processing (EMNLP), 2024

Conference on Neural Information Processing Systems (NeurIPS), 2022

Association for Computational Linguistics (ACL), 2023

Conference on Neural Information Processing Systems (NeurIPS), 2021

Conference on Neural Information Processing Systems (NeurIPS), 2020

Association for Computational Linguistics (ACL) Conference, 2020

Conference on Empirical Methods in Natural Language Processing (EMNLP), 2020

Semantic Web Journal (SWJ), 2019

Knowledge-Based Systems (KNOSYS), 2018

International Joint Conference on Articial Intelligence (IJCAI), 2018

Machine Learning (MLj), 2017

Machine Learning (MLj), 2016

Journal of Machine Learning Research (JMLR), 2016

Semantic Web Journal (SWJ), 2017

Journal of Web Semantics (JWS), 2015

Language Resources and Evaluation Conference (LREC), 2014

Journal of Machine Learning Research (JMLR), 2014

Journal of Information Technology Research (JITR), 2014

Knowledge-Based Systems (KNOSYS), 2013

Journal of Web Semantics (JWS), 2013

International Conference on World Wide Web (WWW), 2013

Semantic Web Journal (SWJ), 2012

Journal of Web Semantics (JWS), 2012

Journal of Information Technology Research (JITR), 2012

International Workshop on Description Logics (DL), 2012

International Symposium on Rules (RuleML), 2012

IEEE Intelligent Systems, 2012

Semantic Web Journal (SWJ), 2011

Knowledge-Based Systems (KNOSYS), 2011

International Journal On Semantic Web and Information Systems (IJSWIS), 2011

International Conference on Inductive Logic Programming (ILP), 2011

IEEE Intelligent Systems, 2011

Semantic Web Journal (SWJ), 2010

Knowledge-Based Systems (KNOSYS), 2010

Journal of Web Semantics (JWS), 2010

International Conference on Inductive Logic Programming (ILP), 2010

Journal of Web Semantics (JWS), 2009

Journal of Information Technology Research (JITR), 2009

International Semantic Web Conference (ISWC), 2009

IEEE International Conference on Semantic Computing (ICSC), 2009

European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML PKDD), 2009

Workshop on Linked Data on the Web (LDOW), 2008

International Journal of Metadata, Semantics and Ontologies (IJMSO) (IJMSO),2008

IEEE International Conference on Web Services (ICWS), 2008

Journal of Web Semantics (JWS), 2007

International Joint Conference on Neural Networks (IJCNN), 2007

European Semantic Web Conference (ESWC), 2007